Q: What are the prime factors of the number 220,206,656?

 A: 2, 19, 47, 3853

Why are those the prime factors of the number 220,206,656?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 220,206,656

220,206,656
Factor Arrows
2110,103,328
Factor Arrows
255,051,664
Factor Arrows
227,525,832
Factor Arrows
213,762,916
Factor Arrows
26,881,458
Factor Arrows
23,440,729
Factor Arrows
19181,091
Factor Arrows
473,853

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 19, 47, 3853

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 19 x 47 x 3,853 = 220,206,656

This can also be written as 26 x 191 x 471 x 3,8531 = 220,206,656

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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